I think that would have been first year. Not because it was too academically difficult, but rather it was hard getting used to the idea that you could no longer sail through as the top student without any serious effort.
In retrospect, nearly everyone in the class had been that kind of student from kindergarten onward, effortlessly excelling. Now thrown together, it’s immediately evident that it’s difficult to stand out in that rarefied crowd.
Third year was a close runner up on the difficulty scale, again not because of academic rigor, m but because so many of the residents, fellows, and attending were such asshats. I hate working with people like that.
Stephen A Oljeski, MD- Doctor of Medicine
Source: Quora Digest